Ezio has always been overrated as shit. I unironically enjoyed Unity more. Most of the bugs have been patched out and the DLC is free now.
There's still a couple of hiccups, like lag here and there and a tiny bit of clipping, but nothing nearly as bad as on release.
Just know that close combat is fucking impossible, and the moment you get noticed and are forced into it, you're as good as dead. You need to use smoke bombs and phantom blades as much as possible.